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#electronics

112 posts77 participants13 posts today
Public
Michael van Niekerk 🦀 ☕️ ⚛

I normally do my PCBA using pcbway.
But this time around, I've put an RP2350 on the design that (due to an exclusivity contract) meant I had to use jlcpcb.

8 weeks of waiting for chips, and they've somehow broke a GPS chip which means some of my units won't have its GPS feature.

Not a great experience.

#pcbway#JLCPCB#electronic
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DoomsdaysCW

AI data centers are making your electricity supply worse and could damage your home, new study says

Katie Balevic, Lloyd Lee
December 29, 2024

"A Bloomberg analysis assessed readings from some 770,000 homes from February to October and found that over 75% of 'highly distorted power readings across the country are within 50 miles of significant #DataCenter activity.'

"Stresses on the power grid can lead to inconsistent power quality, and as the power quality decreases, the risk increases, Bloomberg reported. Inconsistent energy flow can cause #electronics to overheat, leading to sparks or even #HouseFires.

"A small handful of large tech companies own the vast majority of global data centers — and they show no signs of slowing down as they pour billions into building more powerful AI models.

"#Amazon, #Google, and #Microsoft own about 65% of the cloud infrastructure market, which includes data centers, according to a 2023 report from market research firm Synergy Research Group.

"Google announced in April that it's investing $3 billion to build and expand data centers in #Virginia and #Indiana. The search engine giant unveiled its latest AI model, #Gemini 2.0, in December.

"#Amazon, which is a large investor in AI startup #Anthropic, is investing another $10 billion in Ohio data centers, Gov. Mike DeWine announced on December 16.

"Microsoft, which has invested $13 billion in ChatGPT-maker OpenAI, said in September that the company has partnered with other investors, including #BlackRock, in a $100 billion energy infrastructure project. The project will include 'new and expanded data centers,' the company said.

"To meet AI's increasing energy demands, companies like Google have also started turning to #NuclearPower to find more reliable and sustainable energy sources."

aol.com/news/ai-data-centers-m

#AIColonialism #NoNukesForAI #AISucks #WaterIsLife #Enshittification #AIPollution #NoisePollution
#DataCenters

AOL · AI data centers are making your electricity supply worse and could damage your home, new study saysBy Katie Balevic,Lloyd Lee
Public
Martin Rundkvist

Electric shavers have been a mature technology for a very long time. This means that a 10-y-o unused shaver is just as good as a new one. I discovered a simple way to save on buying one. Dealers still have lots of older models in stock. I searched online for lower and lower Braun model numbers until I found one that cost 1/5 of the current model.

#electronics
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Shonky Electronics!

This is an idea I had a while back. Take a FT245, put it on a small board the size of a typical 80’s ACIA chip, and add glue logic to make it so it just works with the CPU bus. This is set up to act like a 6850 in polled mode. It isn’t a drop in though, it’s 28 pins instead of 24.

I do have a 24 pin version, using the 6850 pinout, I just can’t see the passive to solder them in place!

#retrocomputing
#electronics

Public
James House-Lantto (He/Him)

geeksaresexy.net/2025/06/04/de

Debunking Myths surrounding wet Electronics. The following Myths should not be (wholly) believed:

- My device turned back on! It’s fine
- My "waterproof" device can tolerate any kind of wetness
- My device has a great IP rating, so it’s been tested under real-world conditions
- I’ve got some rice in the kitchen. I can fix this myself!
- Well, this device is broken, but I’ve got a warranty to replace it

The article goes into a bunch more detail.

Geeks are Sexy · Debunking 5 myths about when your devices get wetConsumer technologies get wet as a regular part of everyday life. Shuvro Mojumder/Unsplash , CC BY-SA Rachel Plotnick, Indiana University Nearly everyone has encountered the unthinkable: Your smartphone landed in the toilet. Or you forgot to take off your smartwatch before jumping into the pool. Or maybe you meant to take those earbuds out of […]
#electronics
Public
JohnS_AZ

I'm diving down the mini-rack rabbit hole. (and blaming @geerlingguy <g> )

Most build these racks for networking and RPi systems. I'm building one for radio equipment, and another as an outboard patch bay for my #eurorack synth.

I bought these two blanks as spacers so I can build a wooden cabinet around the rack rails. The blank will eventually be a power supply and mains switch. The cable entry one will have its brush removed and turned into a display. :-)

#minirack#deskpi#electronics
Public
Matt

A reason we use crystal oscillators at 32.768 kHz for clocks is because anything less than 20 kHz is going to produce a noise audible to humans. The signal is usually divided by passing it through multiple stages of flop-flops down to exactly 1 Hz

Animals have a wider range of hearing than us. For instance, cats can hear up to 85 kHz. This means that they may be sensitive to noises our devices produce that are imperceptible to us, which may have effects on them we rarely consider

#electronics
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